Hello,

After long vacuum time, now, I want to share my experience to solve the sound problem in the case of Ubuntu (Lucid) on Lenovo G560. The sound problem is the case when I plug headphone on my Lenovo G560 which using Ubuntu Lucid on it. Usually if we plug the headphone, the sound only come from the headphone. But, in my computer the sound is come out not only from headphone but also from the computer speakers. In another word, speakers and headphone playing sound simultaneously.

I noticed this problem long ago just after I upgraded from the first kernel (after Lucid installation) to the next kernel. Now, I am using kernel 2.6.32-30.

Last week I found some information how to solve this problem. So, I tried these steps as follows:

  1. sudo add-apt-repository ppa:ubuntu-audio-dev/ppa
  2. sudo apt-get update
  3. sudo apt-get install linux-alsa-driver-modules-$(uname -r)
  4. reboot
  5. Download the newest ALSA driver from http://www.linuxant.com/alsa-driver/archive/alsa-driver-linuxant-1.0.23.1/alsa-driver-linuxant_1.0.23.1_all.deb.zip
  6. Install that ALSA driver
  7. reboot again.

Those steps were worked. But there is a small problem. The mute lamp (button) notification is on the reverse function. I mean, when I push the button for mute the sound isn’t mute, reversely, when the button is pressed for unmute the sound is disappear. Anyway, the headphone><speakers problem is solved.

I hope this information is useful. Bye.

Note: Some comment said, it works with only the first three steps. It depends on the sound card used. In my case, I should go to 7th step.